Rear-axle drive for motor-vehicles



M. C. FRINS.

REAR AXLE DRIVE FOR MOTOR VEHICLES.

APPLlCATlON FILED APR. n. 1919.

1,326,655. Patented Dec. 30,1919.

2 SHEETS-SHEET l.

WITNESS: W INVENTOR A TTOHNEVS M. C. FRINS.

REAR AXLE DRIVE FOR MOTOR VEHICLES.

APPLICATION FILED APR. II. |9I9.

1,326,655. I Patented Dec. 30,1919.

2 SHEETS-SHEET 2- WITNESS. /lVVE/VTUR v I Br ATTORNEYS UNITED STATESPATENT OFFICE.

MAXIMILIAN C.'FRINS, OF NEW YORK, N. Y., ASSIGNOR TO INTERNATIONAL MOTORCOMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

REAR-AXLE DRIVE FOR MOTOR-VEI-IIGLES.

Specification of Letters Patent. Pate t d Dec. 30, 1919.

Application filed April 11, 1919. Serial No. 289,278.

To all whom it may concern Be it known that I, MAXIMILIAN C. From,

a citizen of the United States, residing in the borough of Manhattan ofthe city of New York, in the State of New York, have invented certainnew and useful Improvements in Rear-Axle Drives for Motor- Vehicles, ofwhich the following is a specifi cation, reference being had to theaccompanying drawings, forming a part hereof.

detail in connection with the description of the embodiments shown inthe which,

Figure 1 is a view in horizontal section showlng the improved drive inassociation with the axle sections.

Fig. 2 is a view similar to Fig. 1 but showing a somewhat differentdisposition of the bearings within the housing.

The differential housing a is mounted on the dead axle sections 6 andhas formed therein suitable openings a, a among others, to permit readyaccess to certain of the elements mounted within the housing as willhereinafter be referred to. These openingswill be, of course, closed bysuitable caps a a. Extending into the front end of the housing is thedrive shaft 0, the section of which within the housing may be supportedon .suitable roller bearings 0'.

drawings in This shaft carries at its end a bevel pinion d which mesheswith a bevel gear 0, the hub of which has formed thereon a spur gear 0'for the double reduction of s eed, as will appear. The gears e, 6, mayiiave formed integral therewith, or be keyed on, a shaft section f, f,by which the gears are jou'rnaled 1nthe housing. In the illustratedembodiment the housing at the opening a therein is provided with abearing ring 9 locked in place by a retaining ring 9' and adapted toreceive a bearing race it on which "the shaft section-f is mounted as bymeans ofroller bearings h. The other end of the shaft section f,extending from the face of the'spur gear 6', may be supported on aball'ibearing i carried in a rib or cast on the inner' wall ofthehousing a. This bearing a is retained'in place in the opening formedtherefor in the rib or by means of a retaining ring a threaded into theopening for the bearing. A differential gear designated generally by thecharacter 70 includes bevel gears is, h which are splined on the innerends of the axle sections Z, Z respectively, in a manner Well known. Acarrier m for the differential is provided and this carrier is formed atopposite sides of the diflerential with annular flanges m1, m bywhich-the differential is journaled in the housing a in an approvedmanner. ()ne ,of the annular flanges m is supported on a roller bearinga which is carried by a bearing ring a supported on an annular shouldera", provided therefor at one side of the interior of the housing a. Thisbearing ring a is removably locked in place by a screw ring vi The otherannular flange m, of the carrier m is journaled on a roller bearing 0carried in a bearing ring 0' supported in an annular way providedtherefor within the rib a ofthe housing a. The differential carrier m isalso formed with a circular spider m to which is bolted an internalmaster gear 0 with which meshes the spur gear 2 for the driving of thedifferential.

From the description given it will be evident that the power from thepropeller shaft 0 is transmitted through the large bevel gear 0 and thespur gear 6 to the internal gear ;0 on the differential carrier m, witha double reduction as is desirable in -motor practice for certaintypes'of Vehicles,

arrangement of associated parts is employed excepting so far as concernsthe relation of the large bevel gear E and the spur gear E and thesupporting bearings H I provided therefor. In th1s embodiment the rib Aof the housing A is so formed as to strength, and accessibility, the

cordingly the shaft section F of the spur 7 gear E extends between thespur gearan'd the bevel gear E and the hearing I. is "disposed within anannular way formeditherefor in the rib A between thesa'id two gears} lheother shaft section F which, as before pointedout, may either be formedseparate from or integral with the bevel gear E and the other shaftsection F, is journaled, as

in the other embodiment, in the bearing H. The spider M ofthedifferential carrier-M in the form shown in Fig. 2 has secured theretoan internal gear P -with which meshes the spur gear E for actuation ofthe difierential in the manner hereinbefore described. ,7

The scope of the invention will appear from the appended claims. r

I claim as my invention:

1. In a motor vehicle in combination, a

propeller shaft, a differential mechanism,

adriving pinion ,on': the propeller shaft, a

gear with which the driving pinion meshes,

a'second gear rotatabldwith the first gear, said differential mechanismincluding a circular spider formed? thereon, an internal gear carried bythe spider andin mesh with the second named gear, a housing for all ofing for said gea i 2. Ina motor vehlcle 1n combmation, a

propeller shaft, a differential mechanism,

a driving bevel. pinion on vthe propeller shaft, 'a bevel gear withwhichthe driving pinion meshes, a spur gear rotatable with the firstgear, a master internal gear carried with the differential mechanism andin mesh with the second named gear to eflect a speed reduction,a'housing for all of said gears, and bearings carried inthe housing forsaid gears This specification signed this ninth day of April, A, '1).1919;

MAXIMILIAN o; rams.

30 said gears and bearings carried in the hous-

